| Summary: | 碩士 === 長庚大學 === 化工與材料工程學系 === 100 === In this study, the oxidation of CO over Cu/TiO2 catalysts containing different Cu loadings was investigated. The catalysts are characterized by In-situ XRD, ICP/AES, TGA, Raman, XANES and H2-TPR. The Cu/TiO2 catalysts were prepared by impregnating TiO2 with an aqueous solution of Cu(NO3)2. The Cu/TiO2 catalysts were calcined in air and reduced in H2 at 175oC and 300 oC.
The Cu/TiO2 shows superior activities in CO oxidation, it may attribute to that presence of different CuO species with distinct catalytic activities, which are isolated Cu atoms, highly dispersed CuO and bulk CuO.
When calcination treatment at 225 oC, Cu+ species would formed in the TiO2 lattice, which is the main active phase for the CO oxidation.
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